Bizarre Patents
A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7798431 | Flow control device A flow control device can be implemented to include an riser, a control valve, a simplified retaining rod, and a ball. The riser can include multiple threaded segments, one or more predetermined breakaway points, and a predetermined length and diameter. The control ... | 09/21/2010 |
| 7318556 | Water line safety valve A safety valve for a lawn sprinkler system having at least one subterranean flow line and at least one head for spraying irrigation water. The valve includes a tubular member connected between the flow line and the head. The tubular member has an axial passage there... | 01/15/2008 |
| 7032842 | Spray element for a spray head In a spray element for a spray head for spraying the molds of pressure casting machines, a control piston for the release of the parting agent supply is disposed beside the spray nozzle and a connecting passage opens in a chamber of the housing in which one end of t... | 04/25/2006 |
| 6915967 | Flow control device and trigger device of sprinkler nozzle structure A sprinkler nozzle structure comprises a grip, a barrel, a spray nozzle, a trigger device, and a flow control device. The trigger device is fastened with the grip for clogging and unclogging a water channel of the grip. The flow control device is fastened between th... | 07/12/2005 |
| 6668856 | Valve with guided ball A guided ball check valve in which the ball is guided to prevent radial wander. The guided ball valve comprises a valve housing having a cylindrical bore. A conical valve seat is provided at a first end of the cylindrical bore. Axial grooves are formed in... | 12/30/2003 |
| 6631737 | Flow limiter A device for controlling liquid flow in a conduit which is of a hat-like configuration defined by a cylindrical base part having a flange part at one end and a closure part at another end joined thereto by an integral spring which bends to permit through-... | 10/14/2003 |
| 6263911 | Fluid flow control valve A flow control valve arrests fluid flow from a primary line to a branch line when flow into the branch line exceeds a predetermined flow rate. In one embodiment for use with an irrigation system, the valve includes a T-fitting. The fitting defines a prima... | 07/24/2001 |
| 6260575 | Fluid flow control valve A flow control valve arrests fluid flow from a primary line to a branch line when flow into the branch line exceeds a predetermined flow rate. In one embodiment for use with an irrigation system, the valve includes a T-fitting. The fitting defines a prima... | 07/17/2001 |
| 6189815 | Valve control unit for a fuel injection valve A valve control unit for a fuel injection valve, has a housing body, in which two valve control chambers that communicate continuously with one another are provided. The first valve control chamber communicates fuel with an inflow conduit for fuel pressur... | 02/20/2001 |
| 6000632 | Pop-up sprinkler head with maintenance features A pop-up sprinkler head is provided with a mechanism that shuts off the water when the nozzle portion of the riser is removed for maintenance. A stopper element reciprocally mounted in the riser moves to a shut off position when the nozzle is removed. A v... | 12/14/1999 |
| 5799871 | Spray nozzle with discrete open/close deadband and method therefor A valved nozzle for spraying fuel oil and method therefor includes an inlet, a discharge chamber downstream of the inlet, and a flow restricting orifice downstream of the discharge chamber. The pressure in both the inlet and the discharge chamber urges th... | 09/01/1998 |
| 5465752 | Multi-function valve for a riser in a sprinkler system A multi-function valve for installation in a riser of a sprinkler system provides two valve functions. One function is to stop flow automatically when breakage of a sprinkler head causes the flow rate to exceed a predetermined threshold. The second functi... | 11/14/1995 |
| 5092362 | On-off valves and pressure regulators for high-pressure fluids A fast-actuating on-off valve and pressure regulator particularly well-suited for use with high-pressure incompressible fluids. An actuator, manually-operated or powered, provides a linear push-pull force to a valve stem assembly mounted inside a valve ca... | 03/03/1992 |
| 4944327 | Riser check valve A T-shaped housing has a first channel defined by the housing which when coupled to a fluid distribution conduit forms a segment of the conduit. The housing has a second channel defined by the housing normal to the first channel and in fluid communication... | 07/31/1990 |
| 4884750 | Thrust regulator comprising a mounting enclosure A regulator is housed in the expulsion channel of an aerosol container inside which there is a product that is to be dispensed, this product being subject to an expulsion pressure originating from a compressed gas, the said regulator comprising a flexible... | 12/05/1989 |
| 4825916 | Flow control valve A flow control valve for use in dispensing fuel or other fluid and which can be facilely installed in the inlet end of an automatic fuel dispensing nozzle. This flow control valve does not incorporate a valve seat, for its piston like valve, and pressure ... | 05/02/1989 |
| 4796810 | Rotary irrigation sprinkler In a rotary irrigation mini-sprinkler of the kind comprising a housing having a housing inlet and a housing outlet and, intermediate thereof, a differential pressure control means responsive to variations in the pressure differential between the inlet and... | 01/10/1989 |
| 4784325 | Rotating stream sprinkler A rotating stream sprinkler is provided with an improved spray head for sweeping one or more outwardly projected water streams through a prescribed arcuate spray path, wherein the spray head is adapted for enhanced self-flushing operation to prevent accum... | 11/15/1988 |
| 4753394 | Trickle irrigation systems with improved emitters An emitter for receiving water from a trickle irrigation system and emitting the received water at a trickle flow rate to an area to be irrigated. The emitter includes a float controlled water inlet shutoff valve for receiving water from the trickle irrig... | 06/28/1988 |
| 4736889 | Shut-off valve for sprinkler system Disclosed herein is an automatic shut off valve for a sprinkler system which closes the water flow path whenever a sprinkler head becomes dislodged from a riser pipe. The shut off valve includes a valve seat and a valve element. The valve element is attac... | 04/12/1988 |
| 4650094 | Thrust regulator having turbulence generating means for thrust control A regulator having turbulence generating device for controlling thrust. A differential piston (2) is biased by a spring (3) located in a discharge channel (8a) of a medium under pressure. The spring (3) is weighted in such a way that it is compressed at a... | 03/17/1987 |
| 4643217 | Automatic valve for use with pool cleaning devices An automatic valve is disclosed for controlling the direction of fluid flow. The valve is particularly suited for use with automatic pool cleaning systems to alternately direct fluid flow to the filtration system of an automatic pool cleaner. The valve in... | 02/17/1987 |
| 4545533 | Ablution faucet An ablution faucet includes a wall-mounted control valve and a flexible conduit having a hand-held control unit at the end thereof. The hand-held control unit includes a body portion from which a nozzle projects, and a lever for controlling the flow of wa... | 10/08/1985 |
| 4524913 | Self-regulating sprinkler nozzle There is provided a self-regulating sprinkling nozzle attachable to a liquid-carrying line. The nozzle comprises a housing, a vortex chamber inside the housing, a vortex-producing inlet means through which the liquid enters the vortex chamber. One wall of... | 06/25/1985 |
| 4124164 | Tamper proof safety cut-off fluid nozzle A fluid nozzle designed to shut off when the pressure of the fluid exiting the nozzle reaches a predetermined value, e.g., 30 psi, as set forth in OSHA regulations. The nozzle has a body having an inlet, an outlet, a passage therebetween, and a convention... | 11/07/1978 |
| 4000857 | Flow control aerator A flow control device that maintains a constant flow rate and is arranged to produce a regulated, aerated stream on the discharge side.... | 01/04/1977 |
